Yes, American dryers should work in Canada without any issues. The electrical systems in the United States and Canada are very similar, both using a standard voltage of 120 volts and a frequency of 60 Hz for residential appliances.
Since dryers are designed to work with the 120-volt electrical system commonly found in North America, there should be no compatibility problems between American dryers and Canadian electrical outlets. You can plug your American dryer into a standard Canadian electrical outlet, and it should operate as intended.
However, it's always a good idea to check the dryer's label or user manual to confirm the voltage requirements before using it in a different country. Additionally, if your American dryer has a different plug shape than Canadian outlets, you may need a plug adapter or replace the plug to fit the Canadian sockets. But electrically, the dryers should work seamlessly in both countries.